Review:
1. Communication. Professional and quick.
2. Product. He delivers what he stated in his OP. Quality social bookmarks.
All links are working, at this time, for me. Overall a great job. I have a couple ideas on how to improve the service for the paid service.
Suggestions for Paid Service:
1. Put data in Excel or CSV file. We can extract just the url's easier.
2. Limit the number of url's per user. State the number in your paid service. Looking at some of the profiles, to many url's under one profile will instigate a deleted profile.